Home / 142,106.15-213,113.07-47,310.86

Finding the Fourth Proportional to 142,106.15, 213,113.07 and 47,310.86

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Solution

The fourth proportional to 142,106.15, 213,113.07 and 47,310.86 is: 70,950.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,106.15 : 213,113.07 = 47,310.86 : x
  2. Step 2: Convert to fraction form
    142,106.15/213,113.07 = 47,310.86/x
  3. Step 3: Cross multiply
    142,106.15x = 213,113.07 × 47,310.86
  4. Step 4: Simplify right side
    142,106.15x = 10,082,562,618.94
  5. Step 5: Solve for x
    x = 10,082,562,618.94/142,106.15
  6. Step 6: Final answer
    x = 70,950.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.